Răspuns :
(2728-x•3)=17•125 ------->
(2728-x•3)=2125. ------->
x•3=2728-2125=603 ------>
x= 603:3= 201.
(2728-x*3)=125*17 (2728-x*3)=2125 x*3=2728-2125 x*3=603 x=603/3 x=201